I'm autistic as well. Studies have shown that autistic people are disproportionately likely to identify as LGBTQ, and there are theories for why that is. But so far as I know, nothing conclusive. It could be because we care less about fitting in overall, or it could be something in our brains or DNA.
Aromanticism is usually defined as not experiencing romantic attraction. But pinpointing what that is, is kinda hard. It's an emotional experience, and emotions can be very subtle. I identify as (dark grey) aromantic because I have no interest in dating anyone at all ever. But some aromantic people do want to date and just don't feel the special feelings.
There are different kinds of attraction besides romantic or sexual, as well. Sensual, aesthetic, platonic, etc.